condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0152182 0.0 0.0456546 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.017675566666666667 0.0 0.0530267 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0